This article outlines a theoretical model for teaching elementary mathematical concepts that we have developed over the past 10 years. We begin with general ideas about the abstraction process and differentiate between "abstract-general" and "abstract-apart" concepts. A 4-phase model of teaching, called Teaching for Abstraction, is then proposed…

Despite a growing body of evidence demonstrating the value of Tier 1 and Tier 3 interventions, significantly less is known about Tier 2 level treatments when they are added within the context of a tiered continuum of support. The purpose of this article is to systematically review the existing research base for Tier 2 small group intervention…

This book contains the full text of papers and posters presented at the International Conference on Education and New Developments (END 2020), organized by the World Institute for Advanced Research and Science (W.I.A.R.S.), that this year had to be transformed into a fully Virtual Conference as a result of the Coronavirus (COVID 19) pandemic.…

This study examines the impact of standards-based professional development on teacher efficacy and instructional practice of elementary and middle school science teachers. Professional development activities were conducted over a period of 3 years and included content courses as well as teacher involvement in professional learning communities.…

Over the past few years, educators in South Africa have been subjected to many changes in the educational sphere. Not only was a new approach to education, namely outcomes-based education (OBE) implemented, but the curriculum was also changed and now consists of eight learning areas, some of which are groupings of traditional school subjects (e.g.…